Finding the Fourth Proportional to 6,315,378.36, 8,715,228.31 and 3,414,768.47
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Solution
The fourth proportional to 6,315,378.36, 8,715,228.31 and 3,414,768.47 is: 4,712,383.82
Step by Step Solution
- Step 1: Write the proportion equation
6,315,378.36 : 8,715,228.31 = 3,414,768.47 : x - Step 2: Convert to fraction form
6,315,378.36/8,715,228.31 = 3,414,768.47/x - Step 3: Cross multiply
6,315,378.36x = 8,715,228.31 × 3,414,768.47 - Step 4: Simplify right side
6,315,378.36x = 29,760,486,798,263.25 - Step 5: Solve for x
x = 29,760,486,798,263.25/6,315,378.36 - Step 6: Final answer
x = 4,712,383.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.